2025

Peridotite: Composition, Types & Uses

Peridotite is a dense, coarse-grained ultramafic igneous rock that forms deep within the Earth’s mantle. Dominated by the …

Woman Finds 2.3-Carat Diamond at Arkansas' Crater of Diamonds State Park

The third largest diamond of 2025, a 2.3-carat stone, was discovered by a New York woman at Arkansas’s Crater of Diamonds St…

Rocks That Contain Lithium

Lithium , often called the “ white gold ” of the energy transition, is a lightweight, silvery-white metal essential for the …

What Are Pyrite Ammonites

Pyrite ammonites are fossilized shells of extinct marine mollusks whose original material has been replaced or coated by ir…

Florida Couple Finds 3.36-Carat Diamond at Arkansas Crater of Diamonds State Park

A remarkable 3.36-carat white diamond was discovered at Arkansas’s Crater of Diamonds State Park, making it the second-larg…